Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6830832 | Polymer compound and polymer light-emitting device using the same | Jun Oguma, Yoshiaki Tsubata | 2004-12-14 |
| 6818733 | Polymeric fluorescent substance and polymer light-emitting device using the same | Michio Yamazaki | 2004-11-16 |
| 6696180 | Polymeric fluorescent substance, production method thereof, and polymer light-emitting device using the same | Yoshiaki Tsubata | 2004-02-24 |